Annealing-box



(No Madam J. H. ORWIG. ANNEALING BOX.

Patented Jun 8,1897.

m: mama versus coy; worournow. WASNIHOTON, a. c.

UNITED STATES PATENT r n-ice JOHN HARRISON ORYVIG, OF ALLIANCE, OHIO.

ANNEALlNG-BOX.

SFECIFICATION forming part of Letters Patent No. 584,165, dated June 8, 1897'.

Original application filed March 25, 1896, Serial No. 584,838. Divided and this application filed October 19, 1896. $erial No.

609,318. (No model.) 7

To all whom it may concern:

Be it known that I, JOHN HARRISON Onwre, a citizen of the United States, residing at Alliance, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Annealing-Boxes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in annealing-boxes especially adapted for an nealing large iron and steel sheets and other articles of large size.

My present invention particularly relates to open-bottom annealing-boxes, and belongs to that class of annealing-boxes described in my present allowed application, Serial No. 584,838, of which this is a division. In annealing-boxes of this class it should be the aim in the construction of the box to provide a box that is simple and eflicient and at the same time constructed in such a manner as to withstand great heat without becoming warped.

To this end my invention consists in the novel construction and arrangement of parts, all as fully hereinafter described and claim ed.

My invention is illustrated in the accompanying drawings, in which- Figure l is a perspective View; Fig. 2, a vertical transverse sectional View; Fig. 8, a vertical longitudinal sectional view, and Fig. 4 a vertical transverse sect-ion showing body of box made from a single piece of metal.

Referring to the drawings, a indicates two straight and curved plates forming the sides and arched top of the annealing-box. These two plates a are substantially similar and are joined together longitudinally at their upper curved ends. This jointnre may be either a butted one, as is illustrated in Fig. 2, or lapjointed longitudinally, as may be desired. The size and general shape of the plates may vary. While I have shown in Figs. 1 and 2 a style of box which I usually prefer-that is to say, a box whose body is formed of two plates-tl1e body of the box may be constructed of a single plate, as is shown in Fig. 4, without departing from the spirit of my invention.

Z) is an internal vertical side and arch brace, made of a single piece of metal and riveted to the side walls and arched top portion of the box. The straight and curved brace Z) begins at a point near the bottom of one of the side walls, in case two plates are used in the construction of the body portion, and extends upwardly to the arched portions, then follows the contour of the arched top and ex tends downwardly on the other wall to a point opposite its starting-point. The brace 11 is made of T-bars or other'suitable shapes and is seen rely riveted to the side walls and arched portion. The number of braces employed varies according to the size of the annealing-box. If a single plate is employed. for the body of the box, the brace Z) remains the same and is applied to the body portion in the same manner as when two plates are used in the construction.

c are fiat metal bars or tie-rods running crosswise of the arched portion of the box and are located between the braces b. The tie-rods c are securely riveted to the curved portions of the walls, and for this purpose I employ separators cl, made of angle-bars, T- bars, or other special shapes.

e are the heads or end plates of the box and are each made from a single iron or steel plate provided with an inwardly-projecting flange f. The heads or end plates are securely riveted to the body of the box, the rivets passing through the walls and arched portion and the flange f.

Around the bottom of the box on the side walls and heads or end plates I employ longitudinal and transverse bracing. g is the longitudinal bracing, made of angle-bars, T- bars, or'fiat bars. It runs along the lower edge of the side walls. This longitudinal bracing may be placed either on the outside of the box or on the inside, or the box may be braced both on the outside and inside.

his the transverse bracing and is riveted to the heads e. The transverse bracing h extends across the heads and meets the longitudinal bracing at the corners of the box.

Having thus described my invention, what I claim is 1. An annealing-box, consisting of a U- shaped body portion, end plates each provided with an inwardly-projecting flange and riveted to the body of the box, internal side and arch braces, each made of a single piece of metal and riveted to the side walls and arched top, tie-rods between said braces, and braces around the bottom of the box, substantially as described.

2. An annealing-box consisting of a U- shaped body portion, end plates, each pro vided with an inwardly-projecting flange and riveted to the body portion of the box, internal side and arch braces, each made of a single piece of metal and riveted to the side walls and arched top, tie-rods between said braces and longitudinal and transverse braces around the bottom of the box, substantially as described.

3. An annealing-box, consisting of a U- shaped body portion, end plates each provided Withan inwardly-proj ect-ing flange and riveted to the body of the box, internal side and arch braces each made of a single piece of metal and riveted to the side Walls and arched top, tie-rods between said braces, and internal and external longitudinal andtransverse braces around the bottom of the box, substantially as described.

4:. An annealing-box consisting of a U- shaped body portion, end plates each pro vided Wi th an inwardly-projecting flange and riveted to the body of the box, internal side and arch braces each made of a single piece of metal and riveted t0 the sidewalls and arched top, tie-rods between said braces, and external longitudinal and transverse braces around the bottom of the box, substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

JOHN HARRISON ORWIG.

WVitnesses:

H. W. HARRIS, 0. WV. CASSELMAN. 

